feat: prevent registering components multiple times
feat: prevent registering components multiple times

When using webcomponents that are using d3fc the different webcomponents don't know if another component has
already registered the d3fc components, causing an error. Instead we now display console warning on multiple registrations of webcomponents.
d3fc/d3fc,d3fc/d3fc,d3fc/d3fc,d3fc/d3fc